cosmological horizon

noun

The distance from an observer in a universe beyond which it is impossible for the observer to see, as the light (or other luminal particles) cannot have travelled that distance over the current age of that universe.

Similar
comoving horizoncosmic event horizoncosmic light horizoncosmological event horizonHubble horizonparticle horizon
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Meanings

nouncosmological horizon (plural cosmological horizons)

plural cosmological horizons

  1. astronomyThe distance from an observer in a universe beyond which it is impossible for the observer to see, as the light (or other luminal particles) cannot have travelled that distance over the current age of that universe.

    Synonyms: comoving horizon, cosmic event horizon, cosmic light horizon, cosmological event horizon, Hubble horizon, particle horizon

Synonyms & antonyms

nounThe distance from an observer in a universe beyond which it is impossible for the observer to see, as the light (or other luminal particles) cannot have travelled that distance over the current age of that universe.

Similar
comoving horizoncosmic event horizoncosmic light horizoncosmological event horizonHubble horizonparticle horizon
Also see
comoving horizoncosmic light horizoncosmological event horizonhubble horizon

Translations

Polish horyzont cząstek
  • horyzont cząstekTranslations
Cite this entry
APA

cosmological horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/cosmological%20horizon

MLA

“cosmological horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cosmological%20horizon. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “cosmological horizon,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/cosmological%20horizon.

Source: cosmological horizon on Wiktionary, CC BY-SA 4.0.